1-800-691-1991 | 9am - 8pm ET

Failed to register replica VM


When using vCenter 4.0 unable to perform replication if target host doesn't have the same vNetwork as source. Replica network re-mapping doesn't work either.

Replication job fails to register replica VM with the following error:

Failed to register VM, configFile '[Datastore01] VM_replica/vm_replica.vmx', name 'VM_replica', isTemplate 'False', poolRef 'resgroup-1',
hostRef 'host-1', folderRef 'group-v1' at Veeam.Backup.ViSoap.CSoapConnection.RegisterVM(String configFile, String name, Boolean isTemplate, String poolRef, String hostRef, String folderRef)
vSphere also shows an error event:  Failed to register VM.


vCenter 4.0 doesn't allow registering a VM with a VMX file which contains vNetwork settings that do not exist on the target host.
For example, source VM has a DVS switch, which doesn't exist on the target ESXi 4.0 in vCenter 4.0:
(from source VMX file)
ethernet0.virtualDev = "vmxnet3"\n
ethernet0.dvs.switchId = "a3 cb 3a 50 fb 26 46 bf-0d 67 88 01 74 a5 98 fa"
ethernet0.dvs.portId = "231"
ethernet0.dvs.portgroupId = "dvportgroup-1"
ethernet0.dvs.connectionId = "5895333"
When portgroupId = "dvportgroup-1" does not exist on the target host. vCenter refuses to register such VM.


Algorithm of replication job is the following:

1) upload original VMX file to the target datastore;
2) register replica VM on target with original VMX file;
3) request vCenter to change vNetwork settings of the newly registered machine.

More information

Only vCenter 4.0 is affected. No such problem on standalone ESX(i) 4.0 and VC versions starting from 4.1
Veeam Backup & Replication
6.x, 7
Last Modified:
Please rate how helpful this article was to you:
5 out of 5 based on 1 ratings
Thank you for helping us improve!
An error occurred during voting. Please try again later.

Couldn't find what you were looking for?

Below you can submit an idea for a new knowledge base article.
Report a typo on this page:

Please select a spelling error or a typo on this page with your mouse and press CTRL + Enter to report this mistake to us. Thank you!

Spelling error in text

Knowledge base content request
By submitting, you agree that your personal data will be managed by Veeam in accordance with the Privacy Policy.

ty icon

Thank you!

We have received your request and our team will reach out to you shortly.


error icon

Oops! Something went wrong.

Please go back try again later.